Lubricating device



D. F. FESLER.

LUBFHCATING DEVICE. APPLICATION FILED AUG.25.1920.

Patented Aug. 30, 192k.

. lubricating devices and' is v for the parts.

` o f which `prlsing means for receiving considerable supply of lubrlcant under pres- DOUGLAS F. FESLER, OF EVANSTON,

'.I."II'RIEI.\'I'Qi COMPANY, OF CHICAGO,

ILLINOIS, ASSIGNOR T0 THE BASSICK MANUFAC- ILLINOIS, A CORPORATION oF DELAWARE LUBBICATIN G DEVICE.

August 25, 19'20.

T0 all'wlwm itmay concern.'

Be it known that I, DOUGLAS a citizen of the United States, Evanston, of Illinois, have inventeda certain new and useful Improvement in Lubricating Devices,

the following'is a full, clear, conc1seand exact description, reference being had to the accompanying drawings, forming a part of this specilication.

My. invention relates to improvements in particularly concerned with improvements in devices adapted and intended to be used in connection with a well-known system of lubrication which comprises, among other thlngs, a pluralityof nipples or coupling members adapted vto be. secured to the bearings to be lubricated and a lubricant compressor having a coupling member adapted to be successively detachably connected with said nipples or coupling members.

.The objects of my invention are,

irst, to provide devices for replacing the nipples of the above described system, com- F. FEsLrm, residing at sure, the said means being in communication with `a member connected with the bearing and adaptedtobe connected with the lubricant compressor so that the receiving means can be 'iilled by means of a compressor and will, in turn, discharge its 'contents4 into the bearing after the compressor has been detached from the device. Second, to provide a device of the character described-which is simple in construction and economical to manufacture, and i Third, to provide a device of the character described which can be easily dismantled purposes of cleaning or repalring: Other objects will appear as thls description progresses, reference being -had to the accompanying drawings in which,

Figure 1 isa plan view thereof, and Fig. 2 is a central longitudinal section. In both figures, similar reference characters will be used for referring to similar My 'improved device comprises a central tube 5, one end of which is provided .with screw threads, by means of which it can be attached to a bearin to be lubricated and the other end of which is provided with a Specication of Letters Patent.

i closure 7 which isV in the county of Cook and Statev and holding .a

cant to a bearing this application led SerialuNo. 405,979.

yieldingly held in its closed position by means of a spring 8. The lower end of the spring8 rests upon the pin 9 which extends through the tube and the opposite ends1 of which extend outwardly from the sides of the tube. The said pin .comprises means for making a detachable connection-with a lubricant compressor such as `that disclosed in my co-pending applica` tion, Serial No. 262,930 led November 18, 1918, of which this is a division.

Surrounding the tube 5, and concentric therewith is a cylindrical container 10one end wall 11 of which is provided with screw threads for co-acting` with the screw threaded end 6 of the tube to secure the container thereto. The opposite end of the container is closed by a cap 12 having screw-threaded engagement with the adjacent end of the container and provided with a central aperture 13 through which the tube projects. The tube 5 is provided with a plurality of openings 14 adjacent the inner side ofthe end wall 11 which establish communication between the interior of the tube and the space between the endy wall 11 and the plunger which comprises the cup leather 15 and the follower plate 16. The last two mentioned members are providedwith central apertures for spiral spring 17 interposed between the follower plate 16 and the cap 12 provides means ,for yieldingly urging the plunger toward the end wall 11. The spring is so designed that when the plunger is in its uppermost position, that is, when it lies adjacent the cap 12, the convolutions of the spring 17 will all lie ina common plane and rest against the inner side of the cap 12 thus forming a irm supportV for the plunger. If desired, a rod 18 may be secured to the l Patented Aug. 30, 1921.` Original application led November 18, 1918, Serial No. 262,930. Divided and recelvlng the tube 14. A.

follower 16 and project through an opening in the cap 12 to indicate the amount of vlubricant in the container.

In use, when it is desired to supply lubriequipped with my improved device, the Acoupling on the discharge conduit of the nected with theouter end of the tube 5l as described in my co-p'ending application above referred to and the 'compressor is operated to force lubricant into the tube under pressure. The pressure of the spring 17 is so related to the passage of lubricant between 'lubricant compressor is con# the surfaces of the bearing to be lubricated that the lubricant will, at first, be forced through the openings 14 into the space between the end wall 11 and the plunger, and will raise the plunger against the pressure of the spring until the spring has been flattened out against the cap 12 thus preventing any further movement of the plunger. Upon then increasing the pressure on the lubricant, it will be forced between the surfaces to be lubricated, thus displacing the used lubricant from the bearing and replacing with fresh lubricant. At this stage the compressor'is detached from the tube 5 whereupon the spring 17 will act to continuously supply lubricant to the bearing under a reduced pressure.

While I have described;.the details of construction of the preferred embodiment of my invention, it is to be clearly understood that my invention is not limited to these details but is capable of other adaptations and modifications within the, scope of the appended claims. i

Having thus described my invention, what I claim is 1. A lubricating device comprising `a container, the opposite ends of which are-provided with registering openings, a tube ex' tending through said container and said openings, one end of said tube being provided with an outwardly closing closure and means for making a detachable connection with a lubricant compressor, the other end of said tube being provided with means for v 'connecting said device with a bearing to be lubricated, the wall of said tube being provided with an opening adjacent the inner side of one end wall of said container, a plunger mounted in said container and a spring for urging said plunger toward said last-mentioned end wall.

2. A lubricating device comprising a container, the opposite ends of which are provided with registering openings, a tube extending through said container and said cent the inner side of one end wall of said y container, a plunger mounted in said container and means for urging said plunger toward said last-mentioned end wall.

3. Means for supplying lubricant to a bearing comprising a tube having means at one end for making connection with a bearing, the other end of said tube being provided with an outwardly closing closure and means for making a detachable connection with a lubricant compressor, and means surrounding 'said tube and in communication therewith for receiving and discharging lubricant through said tube under pressure.

4. Means for supplying lubricant to a bearing comprising/a tube having means at one end for making connection with a bearing, the other end of said tube being provided with an outwardly closing closure and meansv for making a detachable connection with a lubricant compressor and means in communication with said tube for receiving and discharging lubricant through said tube under pressure.

5. Means for supplying lubricant to a bearing comprising a tube having means at one end for making connection with a bearing, the other end of said tube being provided with means or making a detachable connection with a 'lubricant compressor and `said tube under pressure. A

. In witness whereof, I hereunto subscribev my name this 21stda of August, 1920.

` DO'U LAS F. FESLER.

Witnesses:

EDNA V. GUsTAFsoN, ANDREW WIN'rERooRN. 

